ImgReader Class | ComponentOne PdfViewer for WPF and Silverlight

C1.WPF.PdfViewer.4.6.2 Assembly / CSJ2K.j2k.image.input Namespace / ImgReader Class

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ImgReader Class Members

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The following tables list the members exposed by ImgReader.

Public Properties

	Name	Description
	ImgHeight	Returns the overall height of the image in pixels. This is the image's height without accounting for any component subsampling or tiling. The value of `h` is returned.
	ImgULX	Returns the horizontal coordinate of the image origin, the top-left corner, in the canvas system, on the reference grid.
	ImgULY	Returns the vertical coordinate of the image origin, the top-left corner, in the canvas system, on the reference grid.
	ImgWidth	Returns the overall width of the image in pixels. This is the image's width without accounting for any component subsampling or tiling. The value of `w` is returned.
	NomTileHeight	Returns the nominal tiles height
	NomTileWidth	Returns the nominal tiles width
	NumComps	Returns the number of components in the image. The value of `nc` is returned.
	TileHeight	Returns the overall height of the current tile in pixels, assuming there is no-tiling. Since no-tiling is assumed this is the same as the width of the image. The value of `h` is returned.
	TileIdx	Returns the index of the current tile, relative to a standard scan-line order. This default implementations assumes no tiling, so 0 is always returned.
	TilePartULX	Returns the horizontal tile partition offset in the reference grid
	TilePartULY	Returns the vertical tile partition offset in the reference grid
	TileWidth	Returns the width of the current tile in pixels, assuming there is no-tiling. Since no-tiling is assumed this is the same as the width of the image. The value of `w` is returned.

Public Methods

	Name	Description
	close	Closes the underlying file or network connection from where the image data is being read.
	getCompData
	getCompImgHeight	Returns the height in pixels of the specified component in the overall image. This default implementation assumes no component, or component, subsampling (i.e. all components have the same dimensions in pixels).
	getCompImgWidth	Returns the width in pixels of the specified component in the overall image. This default implementation assumes no component, or component, subsampling (i.e. all components have the same dimensions in pixels).
	getCompSubsX	Returns the component subsampling factor in the horizontal direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
	getCompSubsY	Returns the component subsampling factor in the vertical direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
	getCompULX	Returns the horizontal coordinate of the upper-left corner of the specified component in the current tile.
	getCompULY	Returns the vertical coordinate of the upper-left corner of the specified component in the current tile.
	getFixedPoint
	getInternCompData
	getNomRangeBits
	getNumTiles	Overloaded. Returns the number of tiles in the horizontal and vertical directions. This default implementation assumes no tiling, so (1,1) is always returned.
	getTile	Returns the coordinates of the current tile. This default implementation assumes no-tiling, so (0,0) is returned.
	getTileCompHeight	Returns the height in pixels of the specified tile-component. This default implementation assumes no tiling and no component subsampling (i.e., all components, or components, have the same dimensions in pixels).
	getTileCompWidth	Returns the width in pixels of the specified tile-component. This default implementation assumes no tiling and no component subsampling (i.e., all components, or components, have the same dimensions in pixels).
	isOrigSigned	Returns true if the data read was originally signed in the specified component, false if not.
	nextTile	Advances to the next tile, in standard scan-line order (by rows then columns). A NoNextElementException is thrown if the current tile is the last one (i.e. there is no next tile). This default implementation assumes no tiling, so NoNextElementException() is always thrown.
	setTile	Changes the current tile, given the new coordinates. An IllegalArgumentException is thrown if the coordinates do not correspond to a valid tile. This default implementation assumes no tiling so the only valid arguments are x=0, y=0.

See Also

Reference

ImgReader Class
CSJ2K.j2k.image.input Namespace